Re: [Qemu-devel] [QEMU : VVFAT] vvfat.c - help required for understanding/modification

[Kevin Wolf <kwolf@redhat.com>]

Am 26.10.2011 21:17, schrieb Pintu Kumar:
> Dear Mr. Johannes,
> 
> I am sorry but I think you took me wrong. I never asked you to do things for me.
> I just wanted few clarifications to proceed further as I was stuck
> after performing few experiments as below:

You are stuck because you still didn't think about the theory before
jumping to the code. Please do this before asking more questions. Both
Johannes and I have told you that it's not as easy as you seem to think.

When you have a design to solve the problem (and I believe it might be
better to start that from scratch rather than extending vvfat as it
would end up being a rewrite anyway), we can discuss that design. But it
doesn't make any sense to discuss detailed changes in vvfat when you
don't even seem to understand the problem.

> But there is one problem here if I use the above logic.
> When I issue "ls" command "vvfat_read" is not getting triggered.
> So I think there is some problem and I could figure out where to
> implement the dynamic scanning of sub-directory later.

Why do you expect that vvfat_read is called? If the guest OS has the
directory entries already cached, there's no reason for it to read them
from disk.

Kevin